Annamalai Senthil

• Username: 5★nullerror
• Country:  India
• Student/Professional:Student
• Institution:International Institute of Information Technology, Hyderabad Telangana, India
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

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No. of Contests Participated: 18

Current Ratings Graph Old Ratings Graph

2081 (-43)RatingProvisional
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Starters 173 (Rated upto < 2700)(2025-02-12 22:30:00)

Global Rank:   489

Cheated in:   

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(2025-02-12 22:30:00)

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1529? (+0)RatingProvisional
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Starters 69 Division 4 (Rated)(2022-12-20 00:00:00)

Global Rank:   224

Cheated in:   

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(2022-12-20 00:00:00)

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Learning Paths (0)

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Practice Paths (0)

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Contests (18)

Starters 69 Division 4 (Rated)

Rain in Chefland, Akash and Dinner, Distinct Sequence, Scalene Triangle, Convert to permutation

Starters 70 Division 3 (Rated)

Cost of Groceries, Minimum distance between 1s, Prime Reversal

Starters 110 Divison 3 (Rated)

Water Park, Airlines, Marbles,  Am I Lucky!, Tetris

Starters 112 Division 3 (Rated)

Max Nutrition, Permutation Construction, Yet Another Array Game, Fair Share Settlement, Cursed Indices, 3 Logicians Walk into a Bar

Starters 115 Division 2 (Rated)

Greedy LIS Algorithm, Make All Zero, A PLUS B Remastered, Decorating Christmas Tree

Starters 116 Division 2 (Rated)

ORST , Access Control, Chef Product

Starters 117 Division 2 (Rated)

Equality Etiquette, Spread Spree, Not Prime Permutation, Spell Shortening

Starters 120 Division 2 (Rated)

Sub or Swp, Count Arrays, Count Subarrays, Find Permutation , Construct Permutation

Starters 122 Division 1 (Rated till 6-Stars)

Arya In Grid, Transformation Cost

Starters 131 Division 2 (Rated)

K-Closeness, Dice Deception, Encrypt Value, T-Perm

Starters 133 Division 2 (Rated)

ABC Conjecture 3, Maximum Alternating Sum, Powered Parameters

Starters 135 Division 1 (Rated till 5-Stars)

Graph Cost

Starters 141 Division 2 (Rated)

Redundant Array, Amphibian Escape, Perfect Prefixes

Starters 152 (Rated till 6 stars)

Completion (Hard), Anti-Palindrome Queries, Completion (Easy), Maximize Hamming Distance

Starters 153 (Rated till 5 stars)

Another Game, Colorful Tree (Easy Version), Xometry (Easy Version), Xometry (Hard Version)

Starters 158 (Rated till 6 stars)

Make a Tree, Buying Game, Multiply 2 to Minimize

Starters 161 (Rated)

Red-Blue Sort, One To Three, Quick Exit

Starters 173 (Rated upto < 2700)

Cool Subsequences, Time Penalty

Total Problems Solved: 72